What Are iPhone X Dimensions? A Precise Size Guide
Discover the exact iPhone X dimensions—height, width, depth, and display size. Practical guidance for cases, docks, and accessories with measurements in mm and inches.
What are iPhone X dimensions? The iPhone X measures 143.6 mm in height, 70.9 mm in width, and 7.7 mm in depth, with a 5.8-inch diagonal display. In inches, that's about 5.65 inches tall, 2.79 inches wide, and 0.30 inches thick. Overall, it weighs around 174 grams. For design work, use these exact figures from What Dimensions Analysis, 2026.
Physical dimensions and design define how the iPhone X fits in pockets, cases, and mounts
According to What Dimensions, the body is precisely defined by height, width, and thickness, not the visible screen area. The iPhone X uses a compact footprint with rounded corners and flat edges that optimize hand feel, grip, and durability. The 143.6 mm height is paired with a 70.9 mm width, which makes it distinctly taller and wider than many earlier models. The 7.7 mm depth contributes to the device's premium feel while remaining pocket-friendly for most users. These measurements are essential anchors for accessory makers and interior designers who plan layouts around device dimensions. What Dimensions analysis, 2026, notes that tolerances may vary slightly due to manufacturing and measurement methods, but the official specs remain the standard reference.
Display size and the bezel: how the 5.8-inch panel sits inside the body
The iPhone X features a 5.8-inch diagonal display with minimal bezels and a notch at the top. While the screen is large for its form factor, the overall body dimensions determine fit in sleeves, cases, and cradles. The display size is not a direct proxy for the body size because the rounded corners and notch reduce usable screen area, but the outer dimensions stay constant across units. This distinction matters when you design compatible screen protectors or mounts.
Measuring accurately: from millimeters to inches
If you’re working in inches, you can convert the official specs: 143.6 mm ≈ 5.65 inches in height, 70.9 mm ≈ 2.79 inches in width, and 7.7 mm ≈ 0.30 inches in depth. Use precise conversion tools or reference What Dimensions Analysis, 2026 for consistency. Always confirm measurements with a caliper or accurate ruler when designing hardware accessories.
Implications for accessories: cases, docks, and mounts
Accessories must account for the outer body dimensions, not just screen size. A case labeled for iPhone X should specify the exact height, width, and depth to ensure a snug fit while preserving camera and sensor access. Docking stands and car mounts require grants for the full depth, not just thickness, to ensure the device sits flush and stable. What Dimensions data emphasizes harmonizing fit with tolerances.
Practical comparisons: how it stacks against contemporaries
Compared to other flagship devices of its era, the iPhone X is notably taller and wider than some predecessors, with a similar thickness. Even small changes in height or width can shift the fit of a sleeve, pocket, or custom stand. When cataloging dimensions for a product catalog, include both metric and imperial units to accommodate global buyers.
Design notes: symmetry, durability, and user experience
The iPhone X’s dimensions reflect a balance between screen dominance and portability. The 5.8-inch display occupies most of the front face, while the body margins and curved edges maintain a comfortable grip. These decisions impact not only accessories but also ergonomics, weight distribution, and heat dissipation, all of which benefit from precise dimension specs.
Common measurement pitfalls to avoid
Never assume the display size equals the device footprint. Always use the official height, width, and depth when referencing specs. Also be mindful that cases and screen protectors may have built-in tolerances, so verify fit with a physical mock-up when possible.
iPhone X dimensions at a glance
| Model | Height (mm) | Width (mm) | Depth (mm) | Display size (in) |
|---|---|---|---|---|
| iPhone X | 143.6 | 70.9 | 7.7 | 5.8 |
Quick Answers
What are the exact dimensions of the iPhone X?
The iPhone X measures 143.6 mm in height, 70.9 mm in width, and 7.7 mm in depth, with a 5.8-inch display.
The iPhone X is 143.6 by 70.9 by 7.7 millimeters, with a 5.8-inch screen.
How do iPhone X dimensions compare to iPhone 8?
The iPhone X is taller and wider than the iPhone 8 and has a similar thickness, reflecting its edge-to-edge display design.
The X is taller and wider than the 8 and similarly thick.
Do the dimensions include the notch?
Dimensions refer to the outer body; the notch is part of the display and does not change the height, width, or depth measurements.
Not the notch; the body measurements stay the same.
Are dimensions the same for all iPhone X units?
Manufacturing tolerances mean tiny variances can occur, but overall dimensions remain consistent across units.
There may be tiny variances, but overall size stays consistent.
Where can I find official dimensions?
Refer to Apple’s official specifications or What Dimensions catalog for precise numbers and unit conversions.
Check Apple specs or What Dimensions catalog for exact numbers.
Can I rely on third-party measurements?
Third-party measurements can vary; always cross-check with official specs and preferred references like What Dimensions.
Cross-check third-party numbers with official specs.
“Accurate device dimensions are essential when designing cases and mounts; even small tolerances can affect fit.”
Main Points
- Know exact body dimensions before designing accessories
- Differentiate display size from outer dimensions for fit
- Convert mm to inches accurately when needed
- Account for tolerances in manufacturing when sourcing parts
